Tazewell County Bridge Report Card
Tazewell County scores 56 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Tazewell County, Illinois
Tazewell County has 358 bridges in the National Bridge Inventory, with 53 rated poor and 1 rated scour-critical. Its poor-condition share of 14.8% is above the 9.5% statewide average. Poor-condition bridges carry about 285,485 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Tazewell County a Bridge Condition Exposure Score of 56/100 (F). The county has 358 bridges in the National Bridge Inventory, including 53 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 285,485 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 14.8% | 29.6 |
| Poor-condition traffic exposure | 25 | 18.2% of measured traffic | 13.6 |
| Scour-critical bridge share | 20 | 0.3% | 0.6 |
| Average age vs national baseline | 10 | 50 years vs 48 nationally | 0.7 |
| Traffic-data completeness | 5 | 1,568,645 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 14.8% |
| State Poor-Condition Share | 9.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.3% |
| Average Bridge Age | 50 years |
| Poor-Condition Traffic Exposure | 285,485 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Tazewell County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| EB US 150 over Illinois River & T&p Rr | Poor condition + traffic exposure | Poor | 30,000 | 1948 |
| WB US 150 over Ill River T&p Rr | Poor condition + traffic exposure | Poor | 30,000 | 1982 |
| US 150 & Ill 116 over Il River Tributary | Poor condition + traffic exposure | Poor | 20,400 | 1964 |
| EB US 24 over Ill 116 | Poor condition + traffic exposure | Poor | 19,200 | 1962 |
| NB Ill 116 over Spring Creek | Poor condition + traffic exposure | Poor | 17,200 | 1928 |
| SB Ill 116 over Spring Creek | Poor condition + traffic exposure | Poor | 17,200 | 1965 |
| EB I-74 over N Main Street | Poor condition + traffic exposure | Poor | 13,100 | 1960 |
| Il 8/ Il 116 over Illinois Riv Bnsf T&p | Poor condition + traffic exposure | Poor | 12,400 | 1932 |
| Il 8/ Il 116 over Richland St. | Poor condition + traffic exposure | Poor | 12,400 | 1966 |
| Il 8/ Il 116 over Center Street | Poor condition + traffic exposure | Poor | 11,800 | 1962 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.